Karl Meiler (30 April 1949 – 17 April 2014) was a tennis player from West Germany who was active in the 1970s and 1980s.

Meiler won four singles (1972, Buenos Aires; 1974, Omaha and Calgary; 1977, Manila) and 17 doubles titles during his professional career. He notably beat top seed Ken Rosewall in the 1973 Australian Open, where he went on to reach the semifinals. Meiler reached his highest singles ATP-ranking on 23 August 1973 when he became world No. 20. He died aged 64 on 17 April 2014 of complications from a head injury sustained in a domestic accident in November 2013.^[1]

Result	W/L	Date	Tournament	Surface	Opponent	Score
Win	1–0	Nov 1972	Buenos Aires, Argentina	Clay	Guillermo Vilas	6–7, 2–6, 6–4, 6–4, 6–4
Loss	1–1	Feb 1973	Salisbury, U.S.	Hard (i)	Jimmy Connors	6–7, 6–7, 3–6
Loss	1–2	Jun 1973	West Berlin	Hard	Hans-Jürgen Pohmann	3–6, 6–3, 3–6, 3–6
Loss	1–3	Jun 1973	Hamburg, West Germany	Clay	Eddie Dibbs	1–6, 6–3, 6–7, 3–6
Loss	1–4	Jan 1974	Roanoke, U.S.	Indoor	Jimmy Connors	4–6, 3–6
Win	2–4	Jan 1974	Omaha, U.S.	Carpet (i)	Jimmy Connors	6–3, 1–6, 6–1
Loss	2–5	Feb 1974	Little Rock, U.S.	Carpet (i)	Jimmy Connors	2–6, 1–6
Win	3–5	Mar 1974	Calgary, Canada	Indoor	Byron Bertram	6–4, 3–6, 6–3
Loss	3–6	Mar 1974	Jackson, U.S.	Carpet (i)	Sandy Mayer	6–7, 5–7
Loss	3–7	Nov 1974	Oslo, Norway	Indoor	Jeff Borowiak	3–6, 2–6
Loss	3–8	Jan 1975	Nassau, Bahamas	Outdoor	Jimmy Connors	0–6, 2–6
Loss	3–9	May 1975	Munich, West Germany	Clay	Guillermo Vilas	6–2, 0–6, 2–6, 3–6
Loss	3–10	Jul 1975	Gstaad, Switzerland	Clay	Ken Rosewall	4–6, 4–6, 3–6
Loss	3–11	May 1976	Munich, West Germany	Clay	Manuel Orantes	1–6, 4–6, 1–6
Loss	3–12	Jun 1977	Brussels, Belgium	Clay	Harold Solomon	5–7, 6–3, 6–2, 3–6, 4–6
Win	4–12	Nov 1977	Manila, Philippines	Clay	Manuel Orantes	DEF
Loss	4–13	May 1979	Florence, Italy	Clay	Raúl Ramírez	4–6, 6–1, 6–3, 5–7, 0–6

Result	No.	Date	Tournament	Surface	Partner	Opponents	Score
Loss	1.	1972	London/Queen's Club, England	Grass	Jürgen Fassbender	Jim McManus Jim Osborne	6–4, 3–6, 5–7
Win	1.	1974	Omaha, U.S.	Hard	Jürgen Fassbender	Ian Fletcher Kim Warwick	6–2, 6–4
Win	2.	1974	Baltimore, U.S.	Carpet	Jürgen Fassbender	Owen Davidson Clark Graebner	7–6, 7–5
Win	3.	1974	Little Rock, U.S.	Carpet	Jürgen Fassbender	Vitas Gerulaitis Bob Hewitt	6–0, 6–2
Win	4.	1974	Calgary, Canada	Indoor	Jürgen Fassbender	Iván Molina Jairo Velasco Sr.	6–4, 6–4
Win	5.	1974	Tempe, U.S.	Hard	Jürgen Fassbender	Ian Fletcher Kim Warwick	4–6, 6–4, 7–5
Win	6.	1974	Oslo, Norway	Indoor	Haroon Rahim	Jeff Borowiak Vitas Gerulaitis	6–3, 6–2
Win	7.	1975	Birmingham, U.S.	Carpet	Jürgen Fassbender	Colin Dowdeswell John Yuill	6–1, 3–6, 7–6
Loss	2.	1975	Hampton, U.S.	Carpet	Jan Písecký	Ian Crookenden Ian Fletcher	2–6, 7–6, 4–6
Loss	3.	1975	Munich, West Germany	Clay	Milan Holeček	Wojciech Fibak Jan Kodeš	5–7, 3–6
Loss	4.	1975	Barcelona, Spain	Clay	Wojciech Fibak	Björn Borg Guillermo Vilas	6–3, 4–6, 3–6
Win	8.	1975	Paris Indoor, France	Hard (i)	Wojciech Fibak	Ilie Năstase Tom Okker	6–4, 7–6
Win	9.	1975	London, England	Carpet	Wojciech Fibak	Jimmy Connors Ilie Năstase	6–1, 7–5
Loss	5.	1976	Atlanta WCT, U.S.	Carpet	Wojciech Fibak	John Alexander Phil Dent	3–6, 4–6
Loss	6.	1976	Barcelona WCT, Spain	Clay	Wojciech Fibak	Robert Lutz Stan Smith	3–6, 3–6
Win	10.	1976	Nuremberg, West Germany	Carpet	Frew McMillan	Colin Dowdeswell Paul Kronk	7–6, 6–4
Loss	7.	1976	Nice, France	Clay	Wojciech Fibak	Patrice Dominguez François Jauffret	4–6, 6–3, 3–6
Win	11.	1976	Monte Carlo WCT, Monaco	Clay	Wojciech Fibak	Björn Borg Guillermo Vilas	7–6, 6–1
Win	12.	1976	WCT World Doubles, Kansas City	Carpet	Wojciech Fibak	Robert Lutz Stan Smith	6–3, 2–6, 3–6, 6–3, 6–4
Win	13.	1976	Düsseldorf, West Germany	Clay	Wojciech Fibak	Bob Carmichael Raymond Moore	6–4, 4–6, 6–4
Win	14.	1977	Hamburg, West Germany	Clay	Bob Hewitt	Phil Dent Kim Warwick	3–6, 6–3, 6–4, 6–4
Win	15.	1977	Düsseldorf, West Germany	Clay	Jürgen Fassbender	Paul Kronk Cliff Letcher	6–3, 6–3
Win	16.	1977	Gstaad, Switzerland	Clay	Jürgen Fassbender	Colin Dowdeswell Bob Hewitt	6–4, 7–6
Win	17.	1979	Nancy, France	Hard (i)	Klaus Eberhard	Robin Drysdale Andrew Jarrett	4–6, 7–6, 6–3

• Karl Meiler at the Association of Tennis Professionals
• Karl Meiler at the International Tennis Federation
• Karl Meiler at the Davis Cup